As always ymmv…
I found this a while back and has a lot of unique things…
I use the kernel parameters on many machines…
cat /proc/cmdline
initrd=\initramfs-linux-cachyos.img root=PARTUUID=8<-- SNIP >8 rw zswap.enabled=0 nowatchdog splash intel_idle.max_cstate=1 cryptomgr.notests initcall_debug intel_iommu=igfx_off no_timer_check noreplace-smp page_alloc.shuffle=1 rcupdate.rcu_expedited=1 tsc=reliable mitigations=off
head /etc/sdboot-manage.conf
# config file for sdboot-manage
# kernel options to be appended to the "options" line
LINUX_OPTIONS="zswap.enabled=0 nowatchdog splash intel_idle.max_cstate=1 cryptomgr.notests initcall_debug intel_iommu=igfx_off no_timer_check noreplace-smp page_alloc.shuffle=1 rcupdate.rcu_expedited=1 tsc=reliable mitigations=off"
#LINUX_FALLBACK_OPTIONS=""
sdboot-manage gen
then reboot…
again, ymmv